Health Calculators That Actually Work
Check your BMI, calculate calories, track your fitness, and monitor your health. Get instant answers to your health questions without the hassle of registration or hidden fees.
Most Popular Health Calculators
BMI Calculator
Check if your weight is healthy for your height. Uses the same formula doctors use to determine if you're underweight, normal, overweight, or obese.
Calorie Calculator
Calculate how many calories you need each day to maintain, lose, or gain weight. Based on your age, height, weight, and activity level.
Body Fat Calculator
Estimate your body fat percentage using measurements. Helps track fitness progress and set realistic health goals.
Heart Rate Calculator
Calculate your target heart rate zones for different types of exercise. Helps you exercise safely and effectively.
Pregnancy Calculator
Calculate your due date and track your pregnancy progress. See which week of pregnancy you're in and what to expect.
Protein Calculator
Calculate how much protein you need each day based on your weight, activity level, and fitness goals.
Common Questions
How accurate are these health calculators?
We use the same formulas that doctors and health professionals use. For example, our BMI calculator uses the standard formula used by healthcare providers worldwide.
Can I use these for medical advice?
These calculators are for informational purposes only. They can help you track your health and fitness, but always consult with a healthcare provider for medical advice.
Do you store my health information?
No. All calculations happen in your browser. We never see your health data, and nothing gets sent to our servers. Your health information stays completely private.
Which calculator should I use first?
Start with the BMI calculator to get a general health assessment, then use the calorie calculator to understand your daily needs. Body fat and heart rate calculators help with fitness planning.
Are these calculators really free?
Yes, completely free. No registration, no hidden fees, no premium versions. Just open any calculator and start using it.
Health Calculators
Free health calculators for BMI, calories, body fat, heart rate,. No signup required. Get instant, accurate results for your health.
40 calculators found